.top {
  height: 1rem;
  width: 100%;
  background: #d0121b;
  color: #fbfbfb;
  font-size: 0.33rem;
  display: flex;
  align-items: left;
  justify-content: center;
  position: fixed;
  z-index: 10;
  top: 0;
  max-width: 640px;
  align-items: center;
  .title {
    display: flex;
    align-items: center;
  }
  .back {
    position: absolute;
    top: 13%;
    left: 3%;
  }
  .search {
    position: absolute;
    top: 13%;
    right: 15%;
  }
  .category {
    position: absolute;
    top: 13%;
    right: 3%;
  }
  .iconfont {
    font-size: 38/100rem;
  }

}

.zwf {
  height: 1rem;
  width: 100%;
  display: block;
}